From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 275273858404; Wed, 16 Aug 2023 20:14:43 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 275273858404 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1692216883; bh=A/oyA1DmZqasfJq4hzzDv3g3K/oXHepagiu/8unGTVM=; h=From:To:Subject:Date:In-Reply-To:References:From; b=MWX7ecpa7q3mjc05KwlAzakhz/ZfFbozgQ+OEx3NNLPtiK943CY+LNZmUHh5SP5k2 b/e/Dp0A2nVM/9+P6bbP8WBTY2vTwBh4Gu4SVBuJH6ktYSVZDKEnnaVsQdb1D8WyGH x7xpdv8Jb3JdXwl/yns+cfiPEaG8xEZRz8iWa+t8= From: "slyfox at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/111009] [12/13/14 regression] -fno-strict-overflow erroneously elides null pointer checks and causes SIGSEGV on perf from linux-6.4.10 Date: Wed, 16 Aug 2023 20:14:42 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: slyfox at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 12.4 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111009 --- Comment #5 from Sergei Trofimovich --- For what it's worth bisect pointed at r12-4871-g502ffb1f389011 $ git bisect good 502ffb1f389011b28ee51815242c7397790802d5 is the first bad commit commit 502ffb1f389011b28ee51815242c7397790802d5 Date: Tue Nov 2 21:26:44 2021 -0400 Switch vrp2 to ranger.=